Hybrids between Rubus caesius and Rubus sect. Corylifolii (Rosaceae) and their relation to R. cyclomorphus, R. tiliaster, R. glauciformis, R. slesvicensis and R. firmus
Lewin, Marcus ; Zhou, Mingyue ; Montes, Melanie S. ; Mattsson, Tore ; Burén, Tomas ; Hedrén, Mikael LU and Ryde, Ulf LU
(2022)
In Nordic Journal of Botany
2022(12).
- Abstract
- Using flow cytometry and microsatellite DNA analysis (MSDA), we studied hybrids between Rubus caesius and various other Rubus species, with an emphasis on Sweden. We show that hybrids between Rubus caesius and Rubus sect. Corylifolii
arise easily. They show a large variation in morphology, but can
normally be recognised by a number of characters. They are typically
hexaploids, but ~13% of the hybrids are pentaploids and ~8% tetraploids.
With MSDA, they are harder to identify than hybrids with R. idaeus, partly because all Corylifolii species have themselves arisen from R. caesius hybrids and therefore share many alleles with R. caesius, partly because... (More) - Using flow cytometry and microsatellite DNA analysis (MSDA), we studied hybrids between Rubus caesius and various other Rubus species, with an emphasis on Sweden. We show that hybrids between Rubus caesius and Rubus sect. Corylifolii
arise easily. They show a large variation in morphology, but can
normally be recognised by a number of characters. They are typically
hexaploids, but ~13% of the hybrids are pentaploids and ~8% tetraploids.
With MSDA, they are harder to identify than hybrids with R. idaeus, partly because all Corylifolii species have themselves arisen from R. caesius hybrids and therefore share many alleles with R. caesius, partly because hybridisation with R. caesius seems to give rise to some variation in microsatellite regions. Hybrids with species of R. sect. Rubus are much rarer in Sweden and we have only identified one such case. We show that R. cyclomorphus and R. tiliaster are not proper apomictic species, at least not in Sweden, but rather a collection of genetically unrelated hybrids between R. caesius and R. raduloides or R. camptostachys. MSDA analysis of R. slesvicensis and R. firmus
shows that these species are problematic. We identify two distinct
taxa, one from Skåne in Sweden, which we describe as a new species, R. ruboculus and another from the neighbourhood of Viborg and Schleswig, although the latter is probably not identical with R. slesvicensis s.s. All the other samples form a diverse group of putative R. caesius hybrids at three different ploidy levels. Rubus glauciformis
is uniform in Småland, Öland and Blekinge, but becomes harder to
distinguish from various hybrids in Skåne. We conclude that once R. caesius and R. idaeus
hybrids are properly identified, along with a small number of new
apomictic species (often with a local distribution), the genus Rubus does not pose any serious taxonomical problems in Sweden. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/f5aadc19-84ef-46b0-aed1-d8f4d2b431fd
- author
- Lewin, Marcus
; Zhou, Mingyue
; Montes, Melanie S.
; Mattsson, Tore
; Burén, Tomas
; Hedrén, Mikael
LU
and Ryde, Ulf
LU
- organization
- publishing date
- 2022-12
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- apomixis, Rubus, Rubus caesius hybrids, Rubus cyclomorphus, Rubus firmus, Rubus glauciformis, Rubus slesvicensis, Rubus tiliaster
- in
- Nordic Journal of Botany
- volume
- 2022
- issue
- 12
- article number
- e03759
- pages
- 18 pages
- publisher
- Wiley-Blackwell
- external identifiers
-
- scopus:85142924956
- ISSN
- 0107-055X
- DOI
- 10.1111/njb.03759
- language
- English
- LU publication?
- yes
- additional info
- Publisher Copyright: © 2022 The Authors. Nordic Journal of Botany published by John Wiley & Sons Ltd on behalf of Nordic Society Oikos.
- id
- f5aadc19-84ef-46b0-aed1-d8f4d2b431fd
- date added to LUP
- 2023-01-21 11:02:02
- date last changed
- 2023-04-10 03:37:25
@article{f5aadc19-84ef-46b0-aed1-d8f4d2b431fd,
abstract = {{Using flow cytometry and microsatellite DNA analysis (MSDA), we studied hybrids between <i>Rubus caesius</i> and various other <i>Rubus</i> species, with an emphasis on Sweden. We show that hybrids between <i>Rubus caesius</i> and <i>Rubus</i> sect. <i>Corylifolii</i><br>
arise easily. They show a large variation in morphology, but can <br>
normally be recognised by a number of characters. They are typically <br>
hexaploids, but ~13% of the hybrids are pentaploids and ~8% tetraploids.<br>
With MSDA, they are harder to identify than hybrids with <i>R. idaeus</i>, partly because all <i>Corylifolii</i> species have themselves arisen from <i>R. caesius</i> hybrids and therefore share many alleles with <i>R. caesius</i>, partly because hybridisation with <i>R. caesius</i> seems to give rise to some variation in microsatellite regions. Hybrids with species of <i>R.</i> sect. <i>Rubus</i> are much rarer in Sweden and we have only identified one such case. We show that <i>R. cyclomorphus</i> and <i>R. tiliaster</i> are not proper apomictic species, at least not in Sweden, but rather a collection of genetically unrelated hybrids between <i>R. caesius</i> and <i>R. raduloides</i> or <i>R.</i> <i>camptostachys</i>. MSDA analysis of <i>R. slesvicensis</i> and <i>R. firmus</i><br>
shows that these species are problematic. We identify two distinct <br>
taxa, one from Skåne in Sweden, which we describe as a new species, <i>R. ruboculus</i> and another from the neighbourhood of Viborg and Schleswig, although the latter is probably not identical with <i>R. slesvicensis s.s.</i> All the other samples form a diverse group of putative <i>R. caesius</i> hybrids at three different ploidy levels. <i>Rubus glauciformis</i><br>
is uniform in Småland, Öland and Blekinge, but becomes harder to <br>
distinguish from various hybrids in Skåne. We conclude that once <i>R. caesius</i> and <i>R. idaeus</i><br>
hybrids are properly identified, along with a small number of new <br>
apomictic species (often with a local distribution), the genus <i>Rubus</i> does not pose any serious taxonomical problems in Sweden.}},
author = {{Lewin, Marcus and Zhou, Mingyue and Montes, Melanie S. and Mattsson, Tore and Burén, Tomas and Hedrén, Mikael and Ryde, Ulf}},
issn = {{0107-055X}},
keywords = {{apomixis; Rubus; Rubus caesius hybrids; Rubus cyclomorphus; Rubus firmus; Rubus glauciformis; Rubus slesvicensis; Rubus tiliaster}},
language = {{eng}},
number = {{12}},
publisher = {{Wiley-Blackwell}},
series = {{Nordic Journal of Botany}},
title = {{Hybrids between <i>Rubus caesius</i> and <i>Rubus </i>sect. <i>Corylifolii</i> (Rosaceae) and their relation to <i>R. cyclomorphus</i>, <i>R. tiliaster</i>, <i>R. glauciformis</i>, <i>R. slesvicensis</i> and <i>R. firmus</i>}},
url = {{http://dx.doi.org/10.1111/njb.03759}},
doi = {{10.1111/njb.03759}},
volume = {{2022}},
year = {{2022}},
}